Thanks to the action of a fan a mass flow rate of 5000 kg/h of air (c = 1000 J/kgK)) flows inside a duct. Air enters the ductat a temperature of 50 "C and exits at a temperature of 54 "C. Knowing that the air receives a thermal power of 2 kW andthat the changes in kinetic and potential energy are negligible, what is the fan power input (W)?O (a) -3555.5O (b) -1780O (c) -7555.5O (d) +3780

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Answered: Thanks to the action of a fan a mass…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.4P

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Mass flow rate is 1.093 kg/s

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